TB 9-6625-2094-35
d. When indications specified in
paragraphs 8 through 16 are not within
tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 16. Do not perform power supply check if all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to the TI.
WARNING
HIGH VOLTAGE is used or exposed during the performance of
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. Remove protective cover from TI only when necessary to make adjustments. Replace
cover upon completion of adjustments.
b. Connect TI to a 115 V ac source.
c. If OUTPUT meter needle does not bisect the dot at the left end of the scale, adjust
zero adjust, located below meter face, until meter needle bisects dot.
d. Set POWER switch to ON and allow at least 2 hours for TI to warm up and
stabilize.
a. Performance Check
NOTE
Perform only the frequency checks pertaining to the model
being calibrated.
identification of models.
(1) Connect TI RF OUTPUT to frequency counter CHANNEL A. Set counter to
50Ω input and gate time to 10 seconds.
(2) Position TI controls as listed in (a) through (d) below:
(a)
FREQUENCY VERNIER control to CAL.
(b)
MODULATION MODE switch to CW.
(c)
OUTPUT step attenuator control for 0 dBm.
(d)
OUTPUT VERNIER control fully cw.
(e)
FREQUENCY switches to indicate 000.001 MHz.